From 3d51b47f572c649a959edddb7505e9653bbe1779 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 22 May 2015 17:28:07 +0530
Subject: [PATCH] ...

---
 src/calibre/srv/sendfile.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/calibre/srv/sendfile.py b/src/calibre/srv/sendfile.py
index 567a1b4bc1..f79606f555 100644
--- a/src/calibre/srv/sendfile.py
+++ b/src/calibre/srv/sendfile.py
@@ -11,6 +11,7 @@ from io import DEFAULT_BUFFER_SIZE
 from select import select
 
 from calibre.constants import iswindows, isosx
+from calibre.utils.ipc import eintr_retry_call
 
 def file_metadata(fileobj):
     try:
@@ -23,7 +24,7 @@ def copy_range(src_file, start, size, dest):
     total_sent = 0
     src_file.seek(start)
     while size > 0:
-        data = src_file.read(min(size, DEFAULT_BUFFER_SIZE))
+        data = eintr_retry_call(src_file.read, min(size, DEFAULT_BUFFER_SIZE))
         if len(data) == 0:
             break  # EOF
         dest.write(data)